package com.th.control;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;

import com.th.bean.User;
import com.th.common.R;
import com.th.service.UserService;
import com.th.utils.SendMessage;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.mail.MessagingException;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;


@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {

    @Autowired
    private UserService userService;

    @Autowired
    private SendMessage sendMessage;

    @Autowired
    private StringRedisTemplate template;

    /**
     * 发送手机短信验证码
     * @param user
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session) throws MessagingException {
        //获取邮箱
        String email= user.getEmail();
        System.out.println("====================================="+email);

        if(StringUtils.isNotEmpty(email)){

            //调用阿里云提供的短信服务API完成发送短信
            //SMSUtils.sendMessage("瑞吉外卖","",phone,code);

            //邮箱发送
            String codeNum = sendMessage.contextLoads(email);

            //需要将生成的验证码保存到Session
           //  session.setAttribute("mailcode",codeNum);

            //将随机生成的验证码缓存到Redis中，并设置有效期为5分钟
            template.opsForValue().set("mailcode",codeNum,5, TimeUnit.MINUTES);


            return R.success("手机验证码短信发送成功");
        }

        return R.error("短信发送失败");
    }

    /**
     * 移动端用户登录
     * @param map
     * @param session
     * @return
     */
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map, HttpSession session){
        log.info(map.toString());

        //获取邮箱号
        String email = map.get("email").toString();

        //获取验证码
        String code = map.get("code").toString();

        //从Session中获取保存的验证码
       // Object codeInSession = session.getAttribute("mailcode");

        //从redis中获取保存的验证码
        String mailcode = template.opsForValue().get("mailcode");

        //进行验证码的比对（页面提交的验证码和Session中保存的验证码比对）
        if(mailcode != null && mailcode.equals(code)){
            //如果能够比对成功，说明登录成功

            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getEmail,email);

            User user = userService.getOne(queryWrapper);
            if(user == null){
                //判断当前手机号对应的用户是否为新用户，如果是新用户就自动完成注册
                user = new User();
                user.setEmail(email);
                user.setStatus(1);
                userService.save(user);
            }
            session.setAttribute("user",user.getId());
            
            //如果用户登录成功则删除Redis中缓存的验证码
            template.delete("mailcode");

            return R.success(user);
        }
        return R.error("登录失败");
    }

}
